20884049448 has 16 divisors (see below), whose sum is σ = 52210123680. Its totient is φ = 6961349808.

The previous prime is 20884049387. The next prime is 20884049479. The reversal of 20884049448 is 84494048802.

It is a super-2 number, since 2×20884049448² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20884049448.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435084340 + ... + 435084387.

It is an arithmetic number, because the mean of its divisors is an integer number (3263132730).

Almost surely, 2^20884049448 is an apocalyptic number.

It is an amenable number.

20884049448 is an abundant number, since it is smaller than the sum of its proper divisors (31326074232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20884049448 is a wasteful number, since it uses less digits than its factorization.

20884049448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870168736 (or 870168732 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 20884049448 in words is "twenty billion, eight hundred eighty-four million, forty-nine thousand, four hundred forty-eight".